
Within
Within is a procedural exploration game where everything contains something else.
Start with the universe and zoom inward. Through galaxies, nebulae, and black holes, dive into star systems, orbit planets, and descend through clouds to discover continents, forests, mountains, and oceans teeming with life.

🏰 Explore civilizations across time. Wander through medieval villages with peasants, kings, and wizards. Visit modern cities full of houses, offices, and factories. Peek into the far future with space stations and terraformed worlds. Each era has its own people, buildings, and stories waiting to be found.

🔬 Go deeper still. Open a person to find their thoughts and memories. Examine their cells, molecules, and atoms. Keep clicking until you reach quarks—the smallest things we know. And even then, there might be more.

🎲 Everything is procedurally generated. Every universe is unique. Every planet, every creature, every grain of sand has something inside it. There are no goals, no scores, no endings—just endless, meditative discovery.

✨ What's inside? Click to find out.
A tribute to Orteil's Nested (2011), remade with 3D models and expanded content.
| Status | Released |
| Platforms | HTML5 |
| Release date | Jan 16, 2026 |
| Author | Henck de Beredoder |
| Genre | Simulation |
| Made with | Blender, Three.js |
| Tags | 3D, Casual, Exploration, infinite, Procedural Generation, Sandbox, Singleplayer |
| Average session | A few minutes |
| Languages | English |
| Inputs | Mouse, Smartphone |
| AI Disclosure | AI Assisted, Graphics |
Development log
- RoundaboutsJan 17, 2026
- Fading walls for room dioramasJan 17, 2026
- Model improvements for medieval clothesJan 17, 2026
- Planet texturesJan 17, 2026
- Galaxies and star systems appearanceJan 16, 2026



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